Overview
The AD7247KNZ, produced by Analog Devices Inc., is an enhanced version of the industry-standard AD7247. This component is a complete, dual 12-bit, voltage output digital-to-analog converter (DAC) with output amplifiers and a Zener voltage reference integrated on a monolithic CMOS chip. Fabricated in Linear Compatible CMOS (LCMOS), it combines precision bipolar circuits with low power CMOS logic, offering improved performance and reliability. The AD7247KNZ is designed for high-speed data transfer and is microprocessor compatible, making it suitable for a wide range of applications requiring precise analog output control.
Key Specifications
| Specification | Value |
|---|---|
| Resolution | 12 bits |
| Output Voltage Ranges | 0 V to +5 V, 0 V to +10 V, ±5 V |
| Power Supply Range | 12 V to 15 V |
| Interface Type | Parallel (12-bit data bus) |
| Package Type | 24-Lead PDIP |
| Operating Temperature Range | –40°C to +85°C |
| Reference Voltage | On-chip 5 V reference or external reference |
| Load Capability | +10 V across a 2 kΩ load to GND |
Key Features
- Dual 12-bit DACPORT with parallel load and separate Chip Select inputs for each DAC.
- High-speed data latches and interface logic for easy microprocessor compatibility.
- Faster settling times and improved reference variations with VDD.
- No external user trims required for full specified performance.
- REF OUT/REF IN function allowing use of on-chip or external reference voltage.
- Capable of developing +10 V across a 2 kΩ load to GND.
- ESD protection circuitry to prevent damage from electrostatic discharges.
Applications
The AD7247KNZ is suitable for various applications requiring precise digital-to-analog conversion, such as:
- Industrial control systems.
- Medical devices.
- Aerospace and defense systems.
- Automotive systems.
- Test and measurement equipment.
Q & A
- What is the resolution of the AD7247KNZ?
The AD7247KNZ has a resolution of 12 bits. - What are the available output voltage ranges for the AD7247KNZ?
The output voltage ranges are 0 V to +5 V, 0 V to +10 V, and ±5 V. - What is the power supply range for the AD7247KNZ?
The power supply range is from 12 V to 15 V. - How does the AD7247KNZ interface with microprocessors?
The AD7247KNZ is microprocessor compatible with high-speed data latches and interface logic, accepting 12-bit parallel data. - What types of packages are available for the AD7247KNZ?
The AD7247KNZ is available in a 24-Lead PDIP package. - What is the operating temperature range for the AD7247KNZ?
The operating temperature range is –40°C to +85°C. - Can the AD7247KNZ use an external reference voltage?
Yes, the AD7247KNZ can use either the on-chip 5 V reference or an external reference voltage. - What is the load capability of the output amplifiers?
The output amplifiers can develop +10 V across a 2 kΩ load to GND. - Does the AD7247KNZ require external user trims for full performance?
No, the AD7247KNZ does not require external user trims to achieve full specified performance. - Is the AD7247KNZ protected against electrostatic discharge?
Yes, the AD7247KNZ features proprietary ESD protection circuitry.
